Welding plate type electric connector

Abstract

The utility model discloses a welding plate type electric connector. Relates to the field of electric connectors. Comprising at least one power supply terminal, at least one grounding terminal, an insulation base body and a shell, one section, wrapping the power supply terminal and the grounding terminal, of the insulation base body is arranged in the shell, the other section of the power supply terminal and the other section of the grounding terminal are both of a welding plate structure, the welding plate structure is provided with a guide protrusion, and the guide protrusion is arranged in the shell. And a tin soldering through hole is formed beside the guide bulge. According to the utility model, a welding plate type terminal structure is adopted, the contact area between the terminal and a circuit board can be increased, and the terminal has a larger supporting surface after being welded, so that the mechanical fixing capability of the terminal is enhanced, and the terminal is not easy to loosen or break due to uneven stress in the use process.

Description

Technical Field

[0001] This utility model relates to the field of electrical connectors, specifically a solder plate type electrical connector. Background Technology

[0002] USB Type-C connectors are widely used in high-speed data transmission and high-power power supply applications. The structural design of their terminals directly affects the connector's mechanical strength, electrical performance, and long-term reliability. Research indicates that Type-C connector terminals typically employ pin-type or surface-mount soldering methods, but certain technical deficiencies remain in terms of fixing strength, soldering consistency, and current transmission stability.

[0003] 1. The soldering part of the existing USB Type-C connector adopts a pin-type terminal structure. The contact area between the terminal and the circuit board is small, which makes the mechanical fixing ability of the terminal weak. As a result, the terminal is prone to loosening or breaking due to uneven force during long-term use.

[0004] 2. Existing USB Type-C connectors lack effective physical limiting structures for the terminals during the soldering process. The terminals are prone to displacement or misalignment during soldering, which reduces soldering consistency and affects the installation accuracy of the terminals and the overall reliability of the connector.

[0005] 3. Existing USB Type-C connectors typically do not have solder through holes for terminal soldering, which limits solder filling and results in weak metal bonding at the solder joints. This affects the soldering strength and may lead to unstable current transmission due to high contact resistance.

[0006] Therefore, a technical solution is needed to address the above problems. Utility Model Content

[0007] The purpose of this application is to provide a technical solution to address the problems mentioned in the background section.

[0008] To achieve the above objectives, this application provides the following technical solution:

[0009] A solder plate type electrical connector includes at least one power terminal, at least one ground terminal, an insulating substrate, and a housing. The insulating substrate covers one section of the power terminal and the ground terminal and is disposed within the housing. The other section of the power terminal and the ground terminal are both solder plate structures. The solder plate structure has guide protrusions and solder through holes are provided next to the guide protrusions.

[0010] Preferably, it further includes at least one signal terminal, with one end of the signal terminal covered by the insulating substrate disposed inside the housing, and the other end of the signal terminal also being a solder plate structure. The solder plate structure also has a guide protrusion, and a solder through hole is also provided next to the guide protrusion.

[0011] Preferably, it further includes a latch, which is fixed to the outside of the power terminal and the grounding terminal by the insulating substrate.

[0012] Preferably, the hook is either a separate hook or an integrated hook.

[0013] Preferably, at least one side of the guide protrusion has a streamlined design.

[0014] Preferably, the guide protrusion is formed by stamping and stretching.

[0015] Preferably, the power supply terminal, the grounding terminal, and the signal terminal are male terminals or female terminals.

[0016] In summary, the technical effects and advantages of this utility model are as follows:

[0017] 1. This utility model adopts a solder plate type terminal structure, which can increase the contact area between the terminal and the circuit board, so that the terminal has a larger support surface after soldering, thereby enhancing its mechanical fixing ability. During use, the terminal is not easy to loosen or break due to uneven force.

[0018] 2. The present invention forms a guide protrusion on the soldering plate structure. This structure provides physical restraint during terminal soldering and installation, enabling the terminals to be aligned with the PCB. This effectively prevents the terminals from shifting or misaligning during the soldering process, thereby improving the installation accuracy and the overall reliability of the connector.

[0019] 3. The present invention has soldering through holes in the soldering plate structure. These through holes can promote the full filling of solder during the soldering process, making the metal bonding of the solder joints tighter, enhancing the welding strength and reducing the contact resistance, thereby improving the stability of current transmission. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the present utility model.

[0022] Figure 2This is an exploded view of the present invention.

[0023] In the diagram: power terminal 1, grounding terminal 2, insulating substrate 3, outer shell 4, signal terminal 5, hook 6, solder plate structure B, guide protrusion B1, solder through hole B2. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-2 As shown, a solder plate type electrical connector includes at least one power terminal 1, at least one ground terminal 2, an insulating substrate 3, and a housing 4. The insulating substrate 3 can be an insulating plastic part that has been molded once or more, and can be adjusted according to user needs. In this solution, the insulating substrate 3 is an insulating plastic part that has been molded twice. The insulating substrate 3 covers one section of the power terminal 1 and the ground terminal 2 and is disposed inside the housing 4. The other section of the power terminal 1 and the ground terminal 2 are both solder plate structures B. The solder plate structure B forms a guide protrusion B1, and a soldering through hole B2 is provided next to the guide protrusion B1. This utility model adopts a solder plate type terminal welding structure, which can increase the contact area between the terminal and the circuit board, so that the terminal has a larger support surface after welding, thereby enhancing its mechanical fixing ability. During use, the terminal is not easy to loosen or break due to uneven force. A guide protrusion B1 is formed on the soldering board structure B. This structure provides physical restraint during terminal soldering and installation, ensuring that the terminals are aligned with the PCB. This effectively prevents terminal misalignment or displacement during soldering, thereby improving installation accuracy and the overall reliability of the connector. The soldering board structure B also features a soldering through-hole B2. This through-hole promotes full solder filling during soldering, resulting in a tighter metal bond at the solder joint. This enhances soldering strength and reduces contact resistance, thereby improving the stability of current transmission.

[0026] Preferably, it also includes at least one signal terminal 5, with one section of the signal terminal 5 covered by the insulating substrate 3 and disposed inside the housing 4. The other section of the signal terminal 5 is also a solder plate structure B, and the solder plate structure B also forms a guide protrusion B1. A solder through hole B2 is also provided next to the guide protrusion B1.

[0027] Preferably, the device further includes a latching hook 6, which is fixed to the outer sides of the power terminal 1 and the grounding terminal 2 by the insulating substrate 3. The latching hook 6 can be either a separate latching hook or an integrated latching hook. The latching hook 6 is used to fix the device to the mating connector and is configured according to user requirements.

[0028] Preferably, at least one side of the guide protrusion B1 has a streamlined design. By providing a streamlined guide protrusion B1 on the soldering plate structure B, this structure effectively optimizes the positioning accuracy and welding consistency of the terminals, ensuring that the terminals maintain a stable alignment during automated welding and preventing welding defects caused by terminal misalignment. The geometrically optimized design of the streamlined structure reduces the frictional resistance of the terminals during assembly, allowing for a smooth transition when the terminals are inserted into the PCB pads, reducing mechanical interference before welding, and improving the overall accuracy of component assembly. The streamlined guide protrusion B1 provides adaptive adjustment capabilities during welding, ensuring that the terminals maintain a stable support state even when subjected to thermal expansion or mechanical deformation during welding, thereby reducing welding stress concentration and preventing terminal warping, misalignment, or solder joint breakage caused by welding thermal expansion. By optimizing the stress distribution in the welding area, this design effectively improves the metal bonding strength of the solder joints, reduces the impact of welding stress on the structural integrity of the terminals, and thus enhances welding reliability. The streamlined guide protrusion B1 optimizes the aerodynamic characteristics of the terminals, reducing turbulence of hot airflow near the terminals during soldering. This reduces the risk of residual bubbles during solder joint formation, improves solder wettability, ensures uniform solder filling of the soldering area, enhances the metallurgical bonding quality of the solder joint, reduces soldering defects such as cold solder joints and poor solder joints, and improves post-soldering conductivity and long-term reliability. The streamlined guide protrusion B1 structure used in this solution not only enhances the soldering precision and mechanical stability of the terminals but also effectively reduces adverse phenomena caused by terminal stress deformation and airflow interference during soldering. It is suitable for high-precision, high-reliability USB Type-C connectors and other high-performance electronic connector applications.

[0029] Preferably, the power terminal 1, the ground terminal 2, and the signal terminal 5 are either male or female terminals. This can be adapted to meet user needs.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A solder tail electrical connector comprising at least one power terminal, at least one ground terminal, an insulating base, a housing, said insulating base covering a portion of said power terminal and said ground terminal disposed within said housing, wherein: The other section of the power terminal and the ground terminal is a soldering plate structure, the soldering plate structure is formed with a guide protrusion, and a soldering through hole is arranged beside the guide protrusion. ​ 2. A solder tail electrical connector as defined in claim 1, wherein: The signal terminal is also provided with a guide protrusion, and a soldering through hole is arranged beside the guide protrusion.

3. A solder tail electrical connector as defined in claim 1, wherein: The snap hook member is fixed to the outside of the power terminal and the ground terminal through the insulating base.

4. A solder tail electrical connector as defined in claim 3, wherein: The snap hook member is any one of a split type snap hook member or an integrated type snap hook member.

5. A solder tail electrical connector according to claim 1, wherein: At least one side of the guide protrusion is designed in a streamline shape.

6. A solder tail electrical connector according to claim 5, wherein: The guide protrusion is formed by stamping and stretching.

7. A solder tail electrical connector according to claim 2, wherein: The power terminal, the ground terminal and the signal terminal are male terminals or female terminals.

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